Chinese Academy of Sciences

Weibiao Chen

Fei Yang

Rui Li

Haiwen Cai

Xiaolei Zhu

Yadan Zhu

Xiuhua Ma

Jianxin Geng

Zeheng Chen

Jiqiao Liu

Dijun Chen

Xia Hou

Huaguo Zang

Chongde Huang

A laser radar system apparatus for the multi-wavelength measurement of the atmospheric carbon dioxide concentration and a vertical aerosol profile, including: a laser transmitting unit; a dual-pulse laser capable of simultaneously transmitting laser having three wavelengths, i.e., 1572 nm, 1064 nm, and 532 nm; a transmitting beam expander; a receiving telescope system; a visual axis monitoring module; a photoelectric detection unit; and a data acquisition and processing unit. The laser that simultaneously outputs laser having three wavelengths is used in a laser radar system, and an optical differential absorption method and a high spectral resolution detection method are used, such that the atmospheric carbon dioxide concentration and the vertical aerosol profile can be measured simultaneously and high-precision aerosol monitoring is implemented during the high-precision obtaining of the concentration of the greenhouse gas carbon dioxide.

Laser radar system apparatus for multi-wavelength measurement of atmospheric carbon dioxide concentration and vertical aerosol profile

A hollow-core photonic crystal fiber gas cell and method for preparing the same. The hollow-core photonic crystal fiber gas cell comprises a single-mode fiber, a fiber splicing protection sleeve, a hollow-core photonic crystal fiber, and a photoelectric detector. One end of the single-mode fiber is fusion spliced with one end of the hollow-core photonic crystal fiber to form a fusion splice and seal one end of the hollow-core photonic crystal fiber gas cell. The fiber splicing protection sleeve covers and protects the fusion splice. The other end of the hollow-core photonic crystal fiber is processed into an output end by fusion sealing, and the surface of the output end faces, but is not parallel to, a detection surface of the photoelectric detector.

Hollow-core photonic crystal fiber gas cell and method for preparing the same

Growing community of inventors

Shanghai, China

Weibiao Chen